Click on the third or sixth rank to set the en passant target square.

Book: ∞ / 0

# move proof disproof
1 b4 0
2 b6 0
3 Bg7 0
4 e6 0
5 h5 0
6 d6 0
7 f5 0
8 Kd8 0
9 d5 0
10 Nf6 0
11 g5 0
12 e5 0
13 Rh7 0
14 f6 0